Sudden warming from thawing gas downplayed in study
Scientists have long worried that ancient pockets of methane, frozen at the bottom of the Arctic Ocean, could raise planetary temperatures by gurgling up from the seafloor after being thawed by climate change. Now, a team of researchers say the gas might never reach the surface.
Good news — and bad news — about rising temps
Scientists believe they can better pinpoint how much future climate change the world can expect.
The ocean is acidifying. Experts say fresh water might be, too
Ocean acidification is sometimes called the "evil twin" of climate change, reflecting researchers' rising concern about the impacts of greenhouse gases on marine ecosystems. Now those worries are spreading to freshwater habitats.
Tens of millions threatened by river floods — report
Climate change will put tens of millions more people around the world at risk of exposure to flooding rivers over the next 25 years, an alarming new study reports — unless policymakers invest in significant adaptation measures.
More snow makes icy pole look bigger. But it's shrinking
Rising snowfall in Antarctica might help offset losses from the melting ice sheet, scientists are discovering — but only a little. Antarctic contributions to sea-level rise are still a major concern.